HPMC (Hydroxypropyl Methylcellulose)chinhu chakakosha chemakemikari chinowedzera chinoshandiswa zvakanyanya mumatairi simende adhesive. Sepolymer inonyungudika nemvura, HPMC ine kukora kwakanaka, kuchengetedza mvura, kusungirirana uye kugadzira mafirimu, zvichiita kuti ive mutambi akakosha muindasitiri yekuvaka nekuvaka.
1. Basa reHPMC mune tile simende adhesive
Mukugadzira mataira simende adhesive, HPMC inonyanya kuita basa rekukora, kuchengetedza mvura nekuvandudza mashandiro ekuvaka. Sezvo mataira adhesive ari inorganic material yakavakirwa pasamende dhaka, simende inoda mvura panguva yekurapa. Kana mvura ikarasika nekukurumidza panguva yekurapa, iyo simenti hydration reaction haina kukwana, izvo zvinozotungamira kuderedzwa kwesimba rekubatanidza uye kunyange kuputika. Naizvozvo, iyo mvura yekuchengetedza mhedzisiro yeHPMC inonyanya kukosha. Inogona kuvhara mvura mune inonamatira, yakazara hydrate simende, uye nokudaro inovandudza kusimba kwekubatanidza.
HPMC ine kukora mhedzisiro mune zvinonamira, izvo zvinoita kuti kunamira kunamatira zviri nani kune hwaro hwekuvaka panguva yekuvaka, kudzivirira kudonha uye kudonha, uye kunatsiridza kuve nyore kwekuvaka. Uye zvakare, HPMC inogona kugadzirisa viscosity uye kuenderana kwekunamira, nekudaro optimization yayo fluidity uye kufambisa kushandiswa kwayo munzvimbo dzakasiyana dzekuvaka dzakadai semadziro uye pasi. Firimu-yekugadzira chivakwa chimwe chinhu chikuru cheHPMC. Inogona kuumba firimu rinoshanduka pamusoro pemasimende anonamira, kuwedzera simba rekubatanidza, uye kugadzirisa kutsemuka kweanonamira.
2. Mabhenefiti makuru eHPMC
Kuchengetwa kwemvura: HPMC's mvura yekuchengetedza simba ndicho chikonzero chakakosha chekushandiswa kwayo sechinhu chinonamira. Kuchengetedzwa kwemvura kwakanakisa kunogona kudzivirira mvura kuti irege kukurumidza kubuda, kuitira kuti simiti yesamende inyatso hydrated panguva yekurapa, nekudaro ichivandudza zvakanyanya kuita kwekubatana. Kuvaka mutete-layer, HPMC inogona kuenderera mberi nekuona yunifomu hydration ye simende uye kudzivirira kutsemuka kunokonzerwa nekusaenzana kurasikirwa kwemvura.
Kukora mhedzisiro: Mune mataira simende anonamira, HPMC ine yakakosha kukora zvivakwa. Nekuwedzera huwandu hwakakodzera hweHPMC, iyo viscosity yekunamatira inogona kugadziridzwa kuti ivandudze kushanda panguva yekuvaka, nekudaro kuve nechokwadi chekuti mataira haatsvedze pasi mushure mekunamatwa. Iyi thickening mhedzisiro inonyanya kukosha panguva yekuvaka madziro, ichibvumira mugadziri kuti adzore zvirinani kuyerera uye kunamatira kwekunamatira.
Kuvandudzwa kwekuita chisungo: HPMC inogona zvakare kuvandudza simba rekubatanidza mumanamira esimende, kunyanya pane akatsetseka substrates. Mafirimu ayo ekugadzira firimu anogona kuumba firimu inoshanduka pamusoro pekunamatira, kuvandudza kusimba uye kushorwa kwemvura kwezvinhu, zvichiita kuti tile igare yakachengeteka.
Kuitwa kwekuvaka: Kuwedzerwa kweHPMC hakungogadzirise kushanda kweadhesive, asi zvakare kunoderedza kuoma kwekuvaka. HPMC ine viscosity yakakodzera inogona kuwedzera lubrication maitiro eanonamira, kuderedza kuramba panguva yekushandiswa, uye kuve nechokwadi chekuti chinonamira chinogona kufukidzwa zvakaenzana pane substrate. HPMC zvakare yakagadzikana zvakanyanya kune tembiricha uye yakakodzera kushandiswa mumwaka wakasiyana uye mamiriro ekunze, nekudaro ichichinjika kune akasiyana siyana ekuvaka nharaunda.
3. Mhedzisiro yeHPMCpamusoro pekuita kwetairi simende adhesive
Huwandu hweHPMC hwakawedzerwa kune tile sement adhesive inokanganisa zvakananga kushanda kweiyo inonamira, uye iyo mari inowedzerwa kazhinji iri pakati pe0.1% ne0.5%. Yakanyanya kudiki HPMC inoderedza mhedzisiro yekuchengeta mvura uye kuita kuti kunamira kusakwana musimba; nepo yakawandisa inotungamira kune yakawandisa viscosity uye inokanganisa kuyerera kwekuvaka. Naizvozvo, ndiyo kiyi yekuonesa kuita kweadhesive kuti igadzirise zvine hungwaru huwandu hweHPMC hwakawedzerwa zvichienderana neakasiyana ekuvaka zvinodiwa.
Kuramba kwemvura uye kuramba kwemamiriro ekunze: HPMC inosimudzira kuramba kwemvura kwesimende inonamira, ichiibvumira kuchengetedza simba repamusoro uye kugadzikana munzvimbo dzine hunyoro kana dzakapfuma mvura. Iyi ficha inonyanya kukosha pakuisa mataira munzvimbo dzine hunyoro senge yekugezera nemakicheni. Uye zvakare, HPMC inovandudzawo kupikisa kwemamiriro ekunze kweanonamira, zvichiita kuti igadzirise kuchinja kwekushisa uye hunyoro uye kudzivirira kushatisa kwekuita kunokonzerwa nekunze kwemamiriro ekunze.
Kuwedzerwa kwenguva yakavhurika: Nzvimbo yekuchengetedza mvura yeHPMC inowedzera nguva yakavhurika yekunamatira mataira, ichibvumira vashandi vekuvaka kuti vawane nguva yakakwana yekugadzirisa nzvimbo yekuisa mataira uye kuderedza mukana wekugadzirisa zvakare panguva yekuvaka. Panguva imwecheteyo, kuwedzerwa kwenguva yakazaruka kunorevawo kuti kunamatira hakusi nyore kuoma nokukurumidza kana kuvakwa munzvimbo yakakwirira yekushisa, iyo inobatsira kuve nechokwadi chekuvaka.
Anti-sagging: Paunenge uchivaka pamusoro pakatwasuka, iko kukora kweHPMC inodzivirira kunamira kubva pakutsvedza pasi uye kunatsiridza kugona kwekunamira. Kunyanya mukuiswa kwematairi akakura, iyo anti-sagging yeHPMC inowedzerwa zvakanyanya, kuve nechokwadi chekuti matiles makuru anogona kusungirirwa zvakasimba kumadziro pamberi pekunamatira kupora.
Sekuwedzera kwakakosha mune tile sement adhesive,HPMCzvakanyanya kunatsiridza mashandiro ekuvaka uye kubatanidza mhedzisiro yeadhesive nekunaka kwayo kuchengetedza mvura, kukora, kugadzira firimu uye bonding zvivakwa. Kusarudzwa kunonzwisisika uye kugoverwa kweHPMC dosage haingogone kuvandudza zvakasiyana-siyana zvemuviri zvimiro zvekunamatira, asi zvakare kuenderana nezvinodiwa zveakasiyana siyana ekuvaka nharaunda, ichipa yakagadzikana uye yemhando yepamusoro tile paving mhinduro yezvivakwa zvemazuva ano. Mune ramangwana, nekuenderera mberi kwekufambira mberi kwehunyanzvi hwekuvaka uye kutsvaga kwevanhu kwemhando yekuvaka, tarisiro yekushandiswa kweHPMC ichave yakakura.
Nguva yekutumira: Nov-14-2024